The diameter of a wheel of a car is $63 \mathrm{c}\mathrm{m}$. Find the distance travelled (in $\mathrm{m}$) by the car during the period, the wheel makes $1000$ revolutions. 

(Use, $\mathrm{\pi }=\frac{22}{7}$ ).

A rhombus has the same perimeter as the circumference of a circle. If the side of the rhombus is $2.2 \mathrm{m}$, find the radius of the circle (in $\mathrm{m}$). Write your answer in one decimal place.

(Use: $\mathrm{\pi }=\frac{22}{7}$ ).